StrayCatFrump

Consumerism is a cultural problem, not a supply chain issue.

It is both. Capitalism encourages supply chains to be formed based purely on metrics such as cost on the production side. Nothing is planned further than what will minimize the cost to the company, so that profit is maximized. While roughly the same amount of consumption is done by the working class in its consumptive capacity, this does lead to greater consumption and waste by corporations as part of the production process. When we take control of our workplaces, we will be much better able to account for and make rational decisions regarding such externalities.

And to some degree, it's also pointless to try to separate "culture" from "economics". They influence each other. People don't consume simply to consume, but because of the pressures put on us by the system. We drive not just to drive, but because we need to get to work and school, and because capitalists have destroyed our public transportation options. The reverse—our affect on the system of capitalism—is much less powerful these days, as we've allowed ourselves to become powerless and subjugated ourselves more and more to the class war. Certainly cultural elements will be necessary to overcome this, like building a culture of loyalty to one's fellow workers and the unions which empower us, and eschewing advertising's daily effects on our habits. But to imply it is "just cultural" is missing a lot.

Euclidian geometry is used for things on a globe.

non-euclidian spaces are those that are not spherical. Such as a flat earth.

This is incorrect. Euclidean geometry deals with planar geometry such as that which cartesian coordinates are used to describe. I mean, here's a quote from Wikipedia:

More generally, n Cartesian coordinates specify the point in an n-dimensional Euclidean space for any dimension n.

Spherical surfaces are even used as kind of the classical example of non-Euclidean geometry. For example, you can form a triangle along great circles on the surface of a sphere and have all three angles be right angles (90-90-90); something not possible in Euclidean/planer geometry. See the linked text.

That aside is both a nitpick (the curvature of Earth is small enough on the local scale of a city that the differences are negligible) and it is wrong, as cartesian coordinates are planar and aren't useful for accounting for spherical curvature. "Euclidean" and "cartesian" are basically synonyms for this purpose.

Supply chains have become ridiculously complex, though. Like 20 years ago a cell phone manufacturer talked about how just about every piece of a phone was ultimately shipped back and forth across the Pacific about 6 times before being sold in the final product. As raw materials, as base components, as more complex components built from others, after branding, packaging, etc. And although perhaps more and more manufacturing has moved into Asia, I doubt the complexity has decreased or that any particular mind to this kind of waste has been designed into our system generally.

I'm sure there are things to fix about the container ships themselves, as others have pointed out. But another solution is simply to use them MUCH LESS!